Electronics Mechanic Mostly Asked MCQ PDF Part Two For RRB ALP/Technician CBT 2

Electronics Mechanic Mostly Asked MCQ PDF Part Two For RRB ALP/Technician CBT 2

Here we are providing mostly asked MCQ PDF of Electronics Mechanic Trade  For RRB ALP/Technician CBT 2 stage exam,It will be provide help to aspirants who are going to appear this exam.Next part will be upload tomorrow.

RRB ALP/Technician CBT 2 Online Test Series Will Be Start After Stage First Result.

Question-1.A high frequency series inverter consists of

1. A number of series inverters in series
2. A number of series inverters in parallel
3. A number of parallel inverters in series
4. A number of parallel inverters in parallel

Answer-2.A number of series inverters in parallel

Question-2.-Photovoltaic solar energy conversion system makes use of

1. Fuel cell
2. None of these
3. Solar cell
4. Solar pond

Answer-3.Solar cell

Question-3.The basic storage element in a digital system is

1. Encoder
2. Flip flop
3. Counter
4. Multiplexer

Answer-2.Flip flop

Question-4.Ethernet frame consists of

1. MAC address
2. None of these
3. All of these
4. IP address

Answer-1.MAC address

Question-5.The number of digits in octal system is

1. 9
2. 7
3. 10
4. 8

Answer-4.8

Question-6.The resolution of an n bit DAC with a maximum input of 5V is 5mV. The value of n is

1. 11
2. 9
3. 10
4. 8

Answer –10

Question-7.In pulse width modulation of chopper

1. Both of these
2. Ton is kept constant T is varied
3. Either T or Ton is varied
4. T is kept constant and Ton is varied

Answer-4.T is kept constant and Ton is varied

Question-8.In a BJT circuit a pnp transistor is replaced by npn transistor. To analyses the new circuit

1. Replace all calculated voltage and currents by reverse values
2. Replace all calculated voltages by reverse values
3. Replace all calculated currents by reverse values
4. All calculations done earlier have to be repeated

Answer-1.Replace all calculated voltage and currents by reverse values

Question-9.A 12 bit ADC is used to convert analog voltage of 0 to 10V into digital. The resolution is

1. 24.4mV
2. None of these
3. 2.44mV
4. 1.2mV

Answer-3.2.44mV

Question-10.The maximum possible output of a solar array is

1. 100W / m²
2. 250W / m²
3. 500W / m²
4. 300W / m²

Answer-2.250W / m²

Question-11.Devices that accept data from outside computer and transfer into CPU are called

1. Input devices
2. Analogue devices
3. Digital devices
4. Truth table peripherals

Answer-1.Input devices

Question-12.For a system to work, as oscillator the total phase shift of the loop gain must be equal to

1. 360°
2. 90°
3. 45°
4. 270°

Answer-1.360°

Question-13.Operating system is

1. Collection of programs that manages hardware resources
2. Link to interface the hardware and application programs
3. All of these
4. System service provider to the application programs

Answer-3.All of these

Question-14.Microcontrollers often have

1. All of these
2. ROM
3. CPUs
4. RAM

Answer-1.All of these

Question-15.Which of the following signal control the flow of data

1. DTR
2. RTS
3. Both of these
4. None of these

Answer-2. RTS

Question-16.The type of active transducer is

1. Photoelectric
2. Photovoltaic
3. Photoconductive
4. Photo emissive

Answer-2.Photovoltaic

Question-17.The self bias provides

1. High input impedance
2. High base current
3. Large voltage gain
4. Stable Q point

Answer-4.Stable Q point

Question-18.Most common unshielded twisted pair connector is

1. RG-59
2. RG-45
3. RG-II
4. RG-58

Answer-2.RG-45

Question-19.Connector that is used for connecting cable to networking devices is called

1. Subscriber channel (SC)
2. MT-RJ
3. Straight-Tip (ST)
4. None of these

Answer-3.Straight-Tip (ST)

Question-20.Current chopping leads to

1. Over voltage
2. Over current
3. Either of these
4. Both of these

Answer-1.Over voltage

Question-21.The advantage of register indirect addressing mode

1. It makes use of operator
2. It makes uses of registers R0 and R1
3. It is easy
4. It uses the data dynamically

Answer-4.It uses the data dynamically

Question-22.The 8051 can handle ________ interrupt sources.

1. 5
2. 4
3. 3
4. 6

Answer-1.5

Question-23.The 8051 has _________16 bit counter/times.

1. 5
2. 4
3. 3
4. 2

Answer-4.2

Question-24.The following oscillators is suitable for frequencies in the range of mega hertz

1. RC phase shift
2. Wien bridge
3. Hartley
4. All of these

 Answer-3.Hartley

Question-25.The first network is

1. ARPANET
2. NSFNET
3. ASAPNET
4. CNNET

Answer-1.ARPANET

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